Office phone app for your cellphone and computer
The office phone app from Outsource Digital puts your office number on your cellphone and computer, anywhere in South Africa. You make and take office calls on Android, iPhone, Windows or Mac, and customers see your office number, never your personal cellphone number.
Last updated October 2026
How does the app work?
It turns your cellphone into your office extension. You make and take calls on the office number, and it uses data or Wi-Fi, not your airtime.
Which app will I use?
One office phone app: your office number on your cellphone and computer (Android, iPhone, Windows and Mac).
Is it part of the Business Bundle?
Yes. The Business Bundle includes a landline number that rings on the app, and the app also works with a full office phone system.
Also useful: office phone solutions, AI receptionist and Business Bundle.
How it works
WhatsApp us
Tell us what you need.
We set it up for you
We do the set-up. You do not need to be technical.
You are running
You get your sign-in details and you are up and running.
What affects the cost
- The number of users.
- The number of phone numbers.
Everything can be customised. We do not publish prices: WhatsApp us and we quote on your own needs.
Questions about mobile phone apps
What does the app do?
The office phone app turns your cellphone into your office extension. You make and take calls on the office number, not your personal number.
Does the customer see my cellphone number?
No. With the office phone app, customers see your office number, never your personal cellphone number.
Does it use my airtime?
No. The office phone app uses data or Wi-Fi, not your airtime, to make and take calls.
Which phones does it work on?
The office phone app works on Android and iPhone cellphones, and on Windows and Mac computers.
Can I turn office calls off after hours?
Yes. You can turn office calls off after hours by setting working hours or switching to do-not-disturb.
Watch: mobile phone apps in action
Where we work
- Mobile phone apps in Midrand and across South Africa
11 Monza Close, Kyalami Business Park, Midrand, Gauteng, 1684
- Mobile phone apps in Nelspruit and Mpumalanga
Shop 6G, Riverside Auto Centre, 7 Mystic River Crescent, Riverside, Mbombela, 1200
Talk to us about mobile phone apps
WhatsApp us and we will reply with the information or a quote.
Or phone 011 466 8510 (WhatsApp, opens in a new tab)
Monday to Thursday, 08:00 to 16:30; Friday, 08:00 to 15:30